Build failed. https://zuul.opendev.org/t/openstack/buildset/a158013357434bb39ba8e3501bf4cc25 - openstack-tox-docs https://zuul.opendev.org/t/openstack/build/cb3a98a9349d43fcb0ce8feb6c498ef1 : SUCCESS in 4m 27s - openstack-tox-py27 https://zuul.opendev.org/t/openstack/build/f0e8184db0de4e41bc5b07726fddb6a2 : SUCCESS in 4m 24s - openstack-tox-py36 https://zuul.opendev.org/t/openstack/build/a72bbc091a2546afac281dfd04115f80 : SUCCESS in 3m 21s - openstack-tox-py37 https://zuul.opendev.org/t/openstack/build/319e412951d347c4a846fcba457341ab : FAILURE in 5m 11s